Parameters of the Earth's tri-axial level ellipsoid

@article{Bura1993ParametersOT,
  title={Parameters of the Earth's tri-axial level ellipsoid},
  author={Milan Burṥa and Vladim{\'i}ra Fialov{\'a}},
  journal={Studia Geophysica et Geodaetica},
  year={1993},
  volume={37},
  pages={1-13}
}
SummaryFour parameters defining the Earth's tri-axial ellipsoid (E) have been derived on the basis of the condition that the gravity potential on E be constant and equal to the actual geopotential value (W0) on the geoid. The geocentric gravitational constant, the angular velocity of the Earth's rotation, the actual 2nd degree geopotential Stokes parameters and W0 are taken to be the primary geodetic constants defining E and its (normal) gravity field. 
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